A distribution automation information encryption method based on quantum hardening

Abstract

The invention discloses a distribution automation information encryption method based on quantum reinforcement, which includes: presetting a key pool A at the main station and all terminals, separately setting a key pool B at the main station, and the key pool A pre-stores encryption key, the key pool B is used to pre-store or store newly added keys, and the keys are all quantum keys converted after quantum random numbers are generated by the quantum random number generator; key package distribution is carried out: terminals and The master station communicates and jointly selects the key a from the key pool A, and the master station extracts part of the key from the key pool B to form a key package, encrypts the key package with the key a and sends it to all terminals; the terminal Use the key a to decrypt the received key bag, and extract the key in the key bag for secondary encryption and decryption of the State Grid encrypted message, where the key in the key bag is marked after use; when the terminal After all the keys of the key package are marked, select a key a from the key pool A again, and distribute the key package again.

Description

technical field [0001] The invention relates to the field of information encryption, in particular to an information encryption method for distribution automation based on quantum reinforcement. Background technique [0002] Distribution automation terminals are the infrastructure for building smart grids. In order to enhance its ability to resist high-performance computing attacks, solve distribution terminal security issues, and prevent a system accident or large-scale power outage caused by malicious attacks or sabotage, State Grid Corporation of China There are a large number of power measurement and control equipment exposed in the public environment or using public network communication in the power grid information system. These equipment have potential security risks of group control power outages after being hacked and cracked. [0003] Encryption technologies in the prior art can be divided into two categories, namely symmetric encryption technology and asymmetric ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the security and applicability of the encryption methods in the prior art cannot be balanced, the present invention provides a distribution automation information encryption method based on quantum reinforcement, which uses the preset key to encrypt by presetting the quantum key pool The key package is used for distribution, and the preset key is the same as the private key in asymmetric encryption, so the security is extremely high. At the same time, with the help of the unpredictable nature of quantum random numbers, it greatly reduces the cracking of the preset key itself possibility of

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